79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef NL_QUAD_EFFECT_H
|
|
#define NL_QUAD_EFFECT_H
|
|
|
|
#include <vector>
|
|
|
|
#include "nel/misc/types_nl.h"
|
|
#include "nel/misc/vector_2d.h"
|
|
|
|
namespace NL3D {
|
|
|
|
|
|
|
|
class IDriver;
|
|
|
|
/**
|
|
* This class allow to create a sequence of small quads that tesselate a poly.
|
|
* \author Nicolas Vizerie
|
|
* \author Nevrax France
|
|
* \date 2001
|
|
*/
|
|
class CQuadEffect
|
|
{
|
|
public:
|
|
/// a vector of 2d points
|
|
typedef std::vector<NLMISC::CVector2f> TPoint2DVect;
|
|
|
|
// a vector of couple of float used with rasters (first is the left pos, and second is the right pos)
|
|
typedef std::vector< std::pair< float, float> > TRasters;
|
|
|
|
|
|
/** Make raters from the given clipped polygon.
|
|
* \param poly a polygon that describe the area where datas are taken from.
|
|
* \param quadWidth width of the quad
|
|
* \param quadHeight height of the quad
|
|
* \param dest a vector that will be filled with the given rasters
|
|
* \param startY will be filled with the start y position on screen
|
|
*/
|
|
static void makeRasters(const TPoint2DVect &poly
|
|
, float quadWidth, float quadHeight
|
|
, TRasters &dest, float &startY
|
|
);
|
|
|
|
/** Tesselate the given clipped polygon , by using the given quad dimensions
|
|
* The coordinates of the poly are given in screen coordinate.
|
|
* \param poly a polygon that describe the area where datas are taken from.
|
|
* \param quadWidth width of the quad
|
|
* \param quadHeight height of the quad
|
|
* \param dest a vector that will contains the pos of all the quads that cover the poly
|
|
*/
|
|
static void processPoly(const TPoint2DVect &poly
|
|
, float quadWidth, float quadHeight
|
|
, TPoint2DVect &dest
|
|
);
|
|
|
|
};
|
|
|
|
|
|
} // NL3D
|
|
|
|
|
|
#endif // NL_QUAD_EFFECT_H
|
|
|
|
/* End of quad_effect.h */
|